Nexus 5, made by the tech gurus at Google, maker of the Android mobile platform and LG, boasts an "unrivaled visual experience." It's on sale in Oz from today.

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The camera is also excellent - with LG Innotek's optical image stabilizer for less blurring, noise, and good for taking shots in dim light.

The new Nexus 5 also includes Photo Sphere making it easy to capture a series of photos and turn them into a 360-degree experience, and improved HDR+ mode instantaneously captures a burst of shots and fuses these images together into one photo.

The Google made smartphone comes in both 16GB and 32GB versions, in black or white. It costs A$399 for 16GB and $449 for the 32GB model, shipping takes 2-3 weeks, according to Google Play.

"The first thing you'll notice about KitKat is we've made the experience much more engaging: the book you're reading, the game you're playing, or the movie you're watching - now all of these take center stage with the new immersive mode, which automatically hides everything except what you really want to see", writes Sundar Pichai, SVP, Android, Chrome & Apps on a blog.

The new dialer automatically suggests people you are the most likely to call, while Caller ID matches an incoming phone number to a business even if not stored in the contact.

You can send texts directly from Google + Hangouts, which now supports location sharing.

Nexus 5 will be available for purchase from today in Australia, as well as Korea, Japan, United States, Canada, France and others.